AP Physics 1 MC Pracice Kinemaics 1D Quesins 1 3 relae w bjecs ha sar a x = 0 a = 0 and mve in ne dimensin independenly f ne anher. Graphs, f he velciy f each bjec versus ime are shwn belw Objec A Objec B 1.0 2.0 1.0 2.0 1. Which bjec is farhes frm he rigin a = 2 secnds. (A) A (B) B (C) hey are in he same lcain a = 2 secnds (D) They are he same disance frm he rigin, bu in ppsie direcins 2. Which bjec mves wih cnsan nn-zer accelerain? (A) A (B) B (C) bh A and B (D) neiher A nr B 3. Which bjec is in is iniial psiin a = 2 secnds? (A) A (B) B (C) bh A and B (D) neiher A nr B 4. The graph abve shws he velciy versus ime fr an bjec mving in a sraigh line. A wha ime afer = 0 des he bjec again pass hrugh is iniial psiin? (A) 1 s (B) Beween 1 and 2 s (C) 2 s (D) Beween 2 and 3 s 5. A bdy mving in he psiive x direcin passes he rigin a ime = 0. Beween = 0 and = 1 secnd, he bdy has a cnsan speed f 24 meers per secnd. A = 1 secnd, he bdy is given a cnsan accelerain f 6 meers per secnd squared in he negaive x direcin. The psiin x f he bdy a = 11 secnds is (A) + 99m (B) + 36m (C) 36 m (D) 99 m
Quesins 6 8 A ime = 0, car X raveling wih speed v 0 passes car Y which is jus saring mve. Bh cars hen ravel n w parallel lanes f he same sraigh rad. The graphs f speed v versus ime fr bh cars are shwn abve. 6. Which f he fllwing is rue a ime = 20 secnds? (A) Car Y is behind car X. (B) Car Y is passing car X. (C) Car Y is in frn f car X. (D) Car X is acceleraing faser han car Y. 7. Frm ime = 0 ime = 40 secnds, he areas under bh curves are equal. Therefre, which f he fllwing is rue a ime = 40 secnds? (A) Car Y is behind car X. (B) Car Y is passing car X. (C) Car Y is in frn f car X. (D) Car X is acceleraing faser han car Y. 8. Which f he fllwing pairs f graphs shws he disance raveled versus ime and he speed versus ime fr an bjec unifrmly acceleraed frm res? Disance (A) Speed Disance (B) Speed Disance (C) Speed Disance (D) (E) Speed
9. The graph abve shws he velciy v as a funcin f ime fr an bjec mving in a sraigh line. Which f he fllwing graphs shws he crrespnding displacemen x as a funcin f ime fr he same ime inerval? 10. The graph abve shws velciy v versus ime fr an bjec in linear min. Which f he fllwing is a pssible graph f psiin x versus ime fr his bjec? (A) (B) (C) (D) 11. Saring frm res a ime = 0, a car mves in a sraigh line wih an accelerain given by he accmpanying graph. Wha is he speed f he car a = 3 s? (A) 1.0 m/s (B) 2.0 m/s (C) 6.0 m/s (D) 10.5 m/s
12. A child lef her hme and sared walking a a cnsan velciy. Afer a ime she spped fr a while and hen cninued n wih a velciy greaer han she riginally had. All f a sudden she urned arund and walked very quickly back hme. Which f he fllwing graphs bes represens he disance versus ime graph fr her walk? (A) (B) (C) (D) 13. Abve is a graph f he disance vs. ime fr car mving alng a rad. Accrding he graph, a which f he fllwing imes wuld he aumbile have been acceleraing psiively? (A) 0, 20, 38, & 60 min. (B) 5, 12, 29, & 35 min. (C) 5, 29, & 57 min. (D) 12, 35, & 41 min. 14. The psiin vs. ime graph fr an bjec mving in a sraigh line is shwn belw. Wha is he insananeus velciy a = 2 s? (A) 2 m/s (B) ½ m/s (C) 0 m/s (D) 2 m/s
15. Shwn belw is he velciy vs. ime graph fr a y car mving alng a sraigh line. Wha is he maximum displacemen frm sar fr he y car? (A) 5 m (B) 6.5 m (C) 7 m (D) 7.5 m 16. Given he graph f he velciy vs. ime f a duck flying due suh fr he winer. A wha pin did he duck sp is frward min? (A) A (B) B (C) C (D) D 17. A snail is mving alng a sraigh line. Is iniial psiin is x 0 = 5 meers and i is mving away frm he rigin and slwing dwn. In his crdinae sysem, he signs f he iniial psiin, iniial velciy and accelerain, respecively, are Chice x 0 v 0 a (A) + + (B) + (C) (D) +
Quesins 18-20 The fllwing TWO quesins refer he fllwing infrmain. A 0, w cars mving alng a highway are side-by-side as hey pass a hird car spped n he side f he rad. A his mmen he driver f he firs car seps n he brakes while he driver f he spped car begins accelerae. The diagrams belw shw he psiins f each car fr he nex 5 secnds. 18. During which ime inerval wuld cars #2 and #3 be mving a he same average speed? (A) 0 1 (B) 1 2 (C) 2 3 (D) 3 4 19. Which f he hree cars had he greaes average speed during hese 5 secnds? (A) car #2 and car #3 had he same average speed (B) car #2 (C) all hree cars had he same average speed (C) car #3 20. If car #3 cninues cnsanly accelerae a he same rae wha will be is psiin a he end f 6 secnds? (A) 24 m (B) 68 m (C) 72 m (D) 78 m Quesins 21-22 21. The graph represens he relainship beween disance and ime fr an bjec ha is mving alng a sraigh line. Wha is he insananeus speed f he bjec a = 5.0 secnds? (A) 0.0 m/s (B) 0.8 m/s (C) 2.5 m/s (D) 4.0 m/s 22. Beween wha imes did he bjec have a nn-zer accelerain? (A) 0 s n (B) 0 s 5 s (C) he bjec was n acceleraing a any ime (D) 5 s 8 s
Quesins 23-24 The diagram belw represens a y car saring frm res and unifrmly acceleraing acrss he flr. The ime and disance raveled frm he sar are shwn in he diagram. 23. Wha was he accelerain f he car during he firs 0.4 secnds? (A) 25 m/s 2 (B) 9.8 m/s 2 (C) 50 m/s 2 (D) 12 m/s 2 24. Wha was he insananeus velciy f he car a 96 cenimeers frm he sar? (A) 0.6 m/s (B) 4.8 m/s (C) 1.9 m/s (D) 60 m/s Quesins 25-26 The min f a circus clwn n a unicycle mving in a sraigh line is shwn in he graph belw 25. Wha wuld be he accelerain f he clwn a 5 s? (A) 1.6 m/s 2 (B) 8.0 m/s 2 (C) 2.0 m/s 2 (D) 3.4 m/s 2 26. Afer 12 secnds, hw far is he clwn frm her riginal saring pin? (A) 0 m (B) 10 m (C) 47 m (D) 74 m
Quesins 27-29 The accmpanying graph describes he min f a marble n a able p fr 10 secnds. 27. Fr which ime inerval(s) did he marble have a negaive velciy? (A) frm = 8.0 s = 10.0 s nly (B) frm = 6.9 s = 10.0 s nly (C) frm = 4.8 s = 10.0 s nly (D) frm = 4.8 s = 6.2 s and frm = 6.9 s = 10.0 s nly 28. Fr which ime inerval(s) did he marble have a psiive accelerain? (A) frm = 0.0 s = 8.0 s nly (B) frm = 0.0 s = 3.6 nly (C) frm = 3.8 s = 4.8 s and = 6.2 s = 6.8 s nly (D) frm = 2.0 s = 2.5 s, frm = 5.8 s = 6.2 s, and frm = 8.4 s = 8.8 s nly 29. Wha is he marbles average accelerain beween = 3.1 s and = 3.8 s (A) -2.0 m/s 2 (B) 0.8 m/s 2 (C) 2.0 m/s 2 (D) 3.0 m/s 2 Quesins 30-31 The accmpanying graph describes he min f a y car acrss he flr fr 10 secnds. 30. Wha is he accelerain f he y car a = 4 s? (A) 1 m/s 2 (B) 0 m/s 2 (C) 1 m/s 2 (D) 2 m/s 2 31. Wha was he al displacemen f he y car fr he enire 10 secnd inerval shwn? (A) 0 meers (B) 6.5 meers (C) 9 meers (D) 10 meers